Electric lamp



.TIMMONS Sept. 29, 1925.

ELECTRIC LAMP Filed July 18, 1924 2 Sheets-Sheet 1 M W m m L W M WMMSept. 29, 1925. 1.555337 C. W. TIMMONS ELECTRIC LAMP Filed July 18, 19242 Sheets-Sheet 2 I [71' 75 [75 7% [/77 C76 \74 awuemboz Uharlesmli'mvnons,

7 ZZJWQ ferred type.

Patented Sept. 29, 1925.

CHARLES W. TIMMONS, OF LAPEL, INDIANA.

ELECTRIC LAMP.

Application filed July 18, 1924. Serial- No. 726,862.

To all whom it may concern:

Be it known that I, CHARLES W. TIM- MONS, a citizen of the UnitedStates, residing at Lapel, in the county of Madison and State ofIndiana, have invented certain new and useful Improvements in ElectricLamps, of which the following is a specification.

My invention relates to portable electric lamps.

An im ortant object of the invention is to provide an electric lamp ofthe above mentioned character, having a dynamo as a source of current,which is operated by a spring motor, the several parts being arranged ina compact manner, whereby the lamp may be used as the ordinary flash 1iht.

()ther objects and advantages of the invention will be apparent duringthe course of the following description. In the accompanying drawingsformin a part of this specification, and in which llke numerals areemployed to designate like parts throughout the same,

Figure 1 is a horizontal section through the lamp, taken on line 1 1 ofFigure 2,

Figure 2 is a transverse section taken on line 2-2 of Figure 1,

Figure 3 is a transverse line 3-3 ofFigure 1, and,

Figure 4 is a side elevation of a modified form of the invention, partsin central vertical section.

In the drawings, wherein for the purpose of illustration are shownpreferred embodiments of my invention, attention being called first toFigures 1 to 3 inclusive, the numeral 5 designates a preferablycylindrical casing, within the forward portion of which is mounted astationary armature 6, of a generator of any well known or pre- Thisgenerator embodies the usual armature having an armature shaft 7. Thearmature is equlpped with the usual commutator 8, and terminals orbrushes 9 and 10, engage with this commutator. These brushes'are rigidlymounted upon and insulated from a transverse bar 11, carried by thecasing 5. The brush 10 is grounded section taken on to the casing 5, bymeans of a wire 12.; The spring contact'13 is mounted upon the bar 11,and insulated therefrom, but 1s 1n.

' of the shaft 2 electrical connection with the brush 9.

The numeral 14 designates a reflector, disposed rearwardly of a lens 15,held 1n place .tion journaled in a bearing 28,

means of a spring motor, which will now be described.

The numeral 20 designates a rotatable handle or wheel, having a reducedend 21, rotatable within the rear end of the casing 5. t This reducedend is provided with an annular groove 22, the bottom wall of which hasratchet teeth 23, which are faced in a direction to permit the handle 20being turned clock-wise. engaged by a resilient dog or pawl 24, attachedto the rear end of the casing 5, as shown at 25. A screw 26 is carriedby the rear end of the casing 5, and extends into the annular groove 22.This screw and also the .pawl 24, effect a swiveled connection betweenthe handle 20 and the rear end of the casing, whereby this handle mayturn upon the casing but cannot partake of perceptible longitudinalmovement thereon.

Extending centrally and longitudinally within the rear end of the casing5 is'a rotatable shaft 27, having its rear end porformed in a verticalor radial arm 29, rigidly attached within the casing 5. The extreme rearend of this shaft is a so journaled within a bearing. 30, formed upontheinner face of the handle or wheel 20. The extreme forward end of theshaft 27 is rotatable within a sleeve 31, in turn rotatable within abearing 32, formed in a radial arm 33, rigidly attached to the interiorof the casing 5. The arm 29 carries an arm extension 34, rigidlyattached thereto and this arm extension carries a stud 35, upon which isrotatably mounted an intermediate gear 36. This intermediate gearengages at its outer portion with an internal annular gear 37, and atits inner portion with an inner smaller gear 38, rigidl mounted upon therear end It is. seen that when the handle 29 is turned, this motion willbe transmitted to the intermediate gear 36,

These ratchet teeth are which will turn the inner gear 38 at anincreased speed.-

The numeral 39 designates a tortional coil spring, surrounding the shaft27, and having its inner end fixed thereto, as indicated at 40. Theouter end of this spring is looped for connection with a pin 41, whichis attached to the outer edge of a radial disk 42, rotatable upon theshaft 27. This radial disk carries a pin 43, near its center, whichengages within the looped inner end of a tortional coil spring 44,surrounding the shaft 27. The outer end of this spring 24 is looped forreceiving a pin 45, secured to the outer edge of a radial disk 46,rotatable upon the shaft 27. This disk 46 carries near its center a pin47, inserted within the looped inner end' 48 of a torsional coil spring49, surrounding the shaft 27. This spring 49 has its outer end loopedfor receiving a pin 50, attached to the outer portion of a radial disk51. This radial disk is rigidly mounted upon the rear end of the sleeve31, to turn the same.

The sleeve 31 has a crown gear 52 rigidly mounted upon its rear end, forrotation therewith. This crown gear has its annular set. of gear teeth53 arranged to engage with a gear 54, rotatable upon a radial shaft 55,which is journaled in the sides of the easing 5. The shaft 55 carries alarge gear 56, rigidly secured thereto, and this large gear engages asmaller gear 57, rigidly mounted upon a rotatable shaft 58, journaled inthe sides of the casing 5. This smaller gear drives a larger gear 59,rotatable therewith and this larger gear drives a smaller gear 60, rigidupon a shaft 61, journaled in the sides of the casing 5. This smallergear drives a larger beveled gear 62, rotatable therewith, and thisbeveled ear drives a smaller beveled gear 63, which 1s rigidly mountedupon the rear end of the armature shaft 7, which is journaled through aradial bearing 64.

I provide automatic means to maintain constant the speed of the armatureshaft, and for the purpose of illustration I have shown a fan governor65, rigidly mounted thereon. The invention is in no sense restricted tothis particular type of speed governor, as a centrifugal governor or anyother form of governor ma be employed. The fan governor is adapte to beengaged and disengaged by a catch 66, carried by a slide 67, operatingin a guide 68.

In the operationof' this form of the device, the motor may be heldagainst action, by moving the slide 67 forwardly until the catch en agesthe fan 65. The spring motor may be wound by turning the handle 20,clock-wise. spring motor serves to drive the sun gear 52, and this inturn drives a train of gears,

rotating the armature shaft 70, The genera- When the fan 1s released,thetor is then set in action and currentgenerated, which is supplied tothe bulb 18.

In Figure 4, I have shown a second or modified form of my invention, inthe embodiment of a lantern, This lantern embodies a base 70, having anupwardly extending internal annular flange 71, within which is rotatablea winding element or wheel 72. This winding wheel is held against aflange 73, by means of a ring 74, having screw threaded engagement withthe flange 71, as indicated at 75. The winding wheel is turned by thumbpieces 76. This winding wheel is provided upon its lower face with anannular set of ratchet teeth 77, engaged by a spring dog 78, whichpermits tllti winding wheel to turn in one direction on y.

The numeral 79 desi ates a base casing, detachably secured to t e base70, and having a top 80, provided with a central hearing 81, receiving avertical shaft 82, the lower-portion of which is journaled in a bearing83 and a collar 84 is rigidly secured thereto, to prevent verticaldisplacement of the shaft. The shaft 82 carries at its lower end a gear84, rigidly attached thereto, engaging an outer intermediate gear '85,rotatable upon a stationary stud 86. This intermediate ear 85 engages anannular internal gear 8 formed upon the inner face of the top of thewinding wheel 72. It is thus seen that when the winding wheel is turned,the intermediate gear 85 will transmit the rotation to the shaft 82.

Arran ed within the casing 79 is a tortional coil spring 88, the innerend of which is fixed to the shaft 82, at 89, and the outer .end of thisspring is looped to receive'a pin 90, carried by a horizontal crown gear91, which is rotatable upon the shaft 82, above a stop collar 92, fixedthereon. This crown gear embodies an upper annular set of internal gearteeth 93, engaging a smaller gear 94, rigidly mounted upon a verticalshaft 95, journaled in bearings 96, fixed to the -top 80. The shaft 95has a large gear 97 rigidly mounted thereon, engaging a smaller gean'98, driving a larger gear 99. This larger gear engages a smaller gear100, driving a larger gear 101. This larger gear 101 engages and drivesa smaller gear 102, rigidly mounted upon the lower end of an armatureshaft 103. This armature shaft is journaled at its lower end through abearing 104. At the top, the armature shaft 103 has a stop collar 105,and is journaled in a bearing 106. carried b a stationary bar 107. Thisarmature sha t is carried by the usual armature, operating within astationary field winding 108, held within a vertical casing 109,carrying a base flange 110, screwed upon the top of the base casing 79.The armature is provided with the usual commutator- 111, en-

gaged by brushes 112 and 113. The brush 113 is grounded to the verticalcasing 109 by a wire 114; while the brush 112 is mounted upon the bar107, with the brush 113, and both of these brushes are insulated fromthis bar- A resilient contact 115 is mounted upon the bar 107 and is inelectrical connection with the brush 112. The contact 115 engages theinner electrode 116 of an electric bulb 117, the outer electrode ofwhich is in electrical connection with a socket 118, carried by asupporting element 119, attached to a shade support 120, and hence inelectrical connection with; the vertical casing or ground 109. The shadesupport carries a shade 121 of any well known or preferred ty e.

llleans are provided to maintain the speed,

of the armature shaft 103, constant, during operation, and for thispurpose I provide the same with a fan governor 122, rigidly mountedthereon, operating Within the vertical casing 109. This fan governor isadapted to be engaged and disengaged by a catch 123, carried by a slide124, operating within a guide 125.

In view of the foregoing description, it will be seen that when thecatch 123 is in the lower position, it will engage the fan governor 122,and the generator will be held against operation. When the winding.wheel has been turned sufficiently to wind the spring 88, to a propertension, the catch 123 may be elevated to release the fan governor 122,and the enerator will be set in motion, and supp y current to the bulb117.

It is to be understood that the forms of my invention herewith shown anddescribed, are to be taken as preferred examples of the same, and thatvarious changes in the shape, size, and arrangement of parts, may be resorted to, without departing from the spirit of my invention, or thescope of the subjoined claims. 1

Having thus described my invention, I claim:

1. An electric lamp comprising a casing', a generator arranged in theforward end thereof and including an armature shaft, a bulb carried bythe casing in advance of the generator and electrically connectedtherewith, a spring motor arranged in the rear portion of the casing, acrown gear rotatable within the casing adjacent to the spring motor anddriven thereby, a plurality of transverse shafts arranged between thecrown gear and motor, a gear mounted upon the rear transverse shaft andengaging the crown gear, a longitudinal train of gears mounted withinthe casing between the crown gear and generator and carried by thetransverse shafts and serving to connect said gear and armature shaft ofthe generator, a rotatable fan-governor rigidly mounted upon thearmature shaft near the generator, and a latch slidable upon the outersurface of the casing and having a part movable into and out ofengagement with the fan governor,a rotatable winding wheel mounted uponthe rear end of the casing, pawl and ratchet means preventing backturning of the winding wheel, and speed increasing gearing between thewinding wheel and the spring motor.

2. n electric lamp comprising an elongated casing, a generator arrangedin the forward end of the casing and including an armature shaft, a bulbcarried by the forward end of the casing in advance of the generator andelectrically connected therewith, a spring motor arranged in the rear Iportion of the casing, a crown gear rotatable within the casing inadvance of the spring motor and connected with and driven by the springmotor, a plurality of transverse shafts having their ends journaled inbearings carried by the casing and arranged between the crown gear andgenerator, a gear mounted upon the rear transverse shaft and engagingthe crown gear, a longitudinal train of gears mounted within the casingbetween the crown gear and generator and carried by the transverseshafts and serving to connect said gear and the armature shaft of thegenerator, a rotatable fan-governor rigidly mounted upon the saidarmature shaft, a catch slidable upon the casing and having a partmovable into and out of engagement with the fan-governor, and manuallyoperated means to place the spring motor under tension.

3. An electric lamp comprising a casing,

a generator arranged in the forward end of the casing and including anarmature shaft, a bulb carried by the casing and electrically connectedwith the generator, a spring motor arranged within the casing, a crowngear driven by the spring motor, speed increasing gearing between thecrown and the armature shaft of the generator, 2. fan-governor connectedwith the armature shaft, a catch movably mounted upon the casing andadapted to engage and disengage the fangovernor, a rotatable windingwheel carried by the casing, pawl and ratchet means preventing backturning of the winding wheel, and speed increasing gearing between thewinding wheel and the spring motor.

In testimony whereof I affix my signature.

CHARLES W. TIMMONS.

